package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.checkerframework.checker.units.qual.A;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {

    @Autowired
    private MinioProperties minioProperties;
    @Autowired
    private MinioClient minioClient;

    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {
        //拿bucketName 名字
        String bucketName = minioProperties.getBucketName();

        //判断bucketName是否存在
        boolean isExist = minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
        //不存在就创一个
        if(!isExist){
            minioClient.makeBucket(MakeBucketArgs.builder().bucket(bucketName).build());
            String policy = """
                    {
              "Statement" : [ {
                "Action" : "s3:GetObject",
                "Effect" : "Allow",
                "Principal" : "*",
                "Resource" : "arn:aws:s3:::%s/*"
              } ],
              "Version" : "2012-10-17"
            }
            """.formatted(bucketName);
            minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(bucketName).config(policy).build());
        }

        String fileName = UUID.randomUUID() + new SimpleDateFormat("yyyy-MM-dd").format(new Date()) + file.getOriginalFilename();

        //存在就直接上传
        //上传文件
        minioClient.putObject(PutObjectArgs.builder()
                .bucket(bucketName)
                .object(fileName)
                .stream(file.getInputStream(), file.getSize(), -1)
                .contentType(file.getContentType())
                .build());

        String url = String.join("/", minioProperties.getEndpoint(), bucketName, fileName);
        return url;
    }

}
